Dr. Philip H. Sechzer (1914-2004) was a pioneer in anesthesiology and pain management. He was the inventor of patient-controlled analgesia (PCA), now commonly used post-operatively. Wikipedia
The definitive Wikipedia entry for Philip H. Sechzer. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Philip_H%2e_Sechzer